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High-Performance Protection Miniature Residual Current Circuit Breaker 4p 40
US$5.09-6.80
1 tower
Product specifications
Size
Sample price:US$21.20/tower.Request sample
Product profile
Customization
AvailableBreaking Capacity
Low Voltage Circuit BreakersOperation
Energy-storage TypeModel NO.
40Speed
High-Speed Circuit BreakerArc-extinguishing Medium
AirInstallation
FixedStructure
RCCBPoles Number
4Type
Circuit BreakerFunction
Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCBCertification
VDE, ISO9001-2000, CE, CB, CCCTransport Package
Wooden PackagingSpecification
300mm*400mm*200mmTrademark
SDKCOrigin
ChinaKey features
Comprehensive Protection Functions: Provides circuit-breaker failure, overcurrent, overvoltage, and RCCB protection.
Multiple International Certifications: Certified by VDE, ISO9001-2000, CE, CB, and CCC standards.
Energy-Storage Operation Mode: Features high-speed operation with energy-storage type mechanism.
OEM and ODM Services Available: Supports full customization, minor customization, and design-based customization.
Efficient Delivery Time: Delivery completed within 12 days after receiving deposit.
Professional Technical Support: Includes manuals, video guidance, and direct engineer communication.
100% Finished Product Inspection: All units undergo functional inspection before shipment.
Fixed Installation Structure: Designed for fixed installation with 4 poles and air arc-extinguishing medium.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤18h
AI-Powered supplier vetting
SummarySDKC Shandong Kaichuan Electric Equipment Co., Ltd. is described as a high-tech enterprise integrating R&D, manufacturing, trade, and service, with products including electrical control cabinets, motors, frequency converters, electrical components, and high- and low-voltage switchgear. It reports broad customization and ODM capabilities, new products within the past year, and OEM service for well-known brands. Its finished-product inspection instructions are reportedly uniformly followed, while service procedures exist for supplier assessment, corrective actions, and complaints; however, written records are absent for the latter two mechanisms. The supplier reports no overseas warehouse, showroom, agent or branch, or offline trade-show participation, and lists zero overseas service countries. Financial credibility cannot be confirmed because the provided financial fields report zero operating revenue, costs, profits, margins, and ratios for the stated periods, without enough context to validate the...
Supplier typeThe supplier is described as a high-tech enterprise integrating R&D, manufacturing, trade, and service. Its stated business scope centers on producing, processing, and selling electrical control cabinets, motors, frequency converters, switchgear bodies, transformers, and related electrical equipment.
After-Sales capabilityThe supplier has written procedures and records for assessing effective service capability, and reports lead times within 15 workdays in both peak and off-season periods. However, corrective and preventive action and customer-complaint procedures have no written records, while overseas service coverage is limited: zero countries and no overseas warehouse, showroom, agent, or branch.
Financial creditThe supplier reports registered capital and describes itself as a large-scale enterprise, but the financial-capacity slices report zero operating revenue, costs, profits, margins, and current ratios for the stated periods. These figures provide no positive evidence of financial strength and raise a material credibility concern, although the supplied data does not explain whether the zeros reflect actual results or incomplete reporting.
R&D capabilityThe supplier reports R&D capability, at least one new product during the past year, and ODM services. Its company description also identifies R&D as part of its integrated operation, but no usable SDK is available.
Production capacityThe supplier states that it operates manufacturing facilities and equipment including copper-bar processing machinery and an assembly line. Its described production scope covers electrical control cabinets, motors, frequency converters, switchgear, transformers, and related equipment, while finished-product inspection instructions are reportedly available and uniformly followed.
Customization capabilityBoth relevant slices explicitly list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability, supporting broad product-development and customization coverage.
Product Q&A
Q:How to test whether the leakage protection function of the Molded Case Residual Current Circuit Breaker 4P is normal?
A:
Usually, a dedicated leakage testing instrument can be used. When the residual current circuit breaker is in the closed state, simulate a leakage fault and observe whether the circuit breaker can trip within the specified time. You can also press the test button on the Molded Case Residual Current Circuit Breaker 4P to perform manual tests regularly to check whether the leakage protection function is effective. If the residual current circuit breaker fails to trip normally during the test, it in
Q:What is the function of the residual current circuit breaker?
A:
The residual current circuit breaker is mainly used to detect leakage (current leakage) in the circuit and quickly cut off the power supply when leakage occurs to prevent electric shock accidents or electrical fires. It can also provide overload and short-circuit protection.
Q:What is your delivery time?
A:
Depending on the order quantity, delivery can usually be completed within 12 days after receiving the deposit. We have an efficient production process and a complete supply chain system to ensure that we can provide customers with high-quality products on time.
Q:Does the 4P Leakage Miniature Circuit Breaker need to reserve heat dissipation space during installation? Can it be installed side by side with other electrical appliances?
A:
1. When installing the 4P Leakage Miniature Circuit Breaker, it is necessary to follow the installation specifications, leaving at least 5mm of space on the left and right sides, and more than 10mm at the top and bottom to avoid excessive temperature rise due to poor heat dissipation. 2. The 4P Leakage Miniature Circuit Breaker can be installed side by side with other circuit breakers, but it is necessary to ensure good ventilation in the distribution box, especially in the high-temperature envi
Q:Is the neutral wire (N) terminal of the 4P Leakage Miniature Circuit Breaker directional? What should be paid attention to when wiring?
A:
1. The neutral wire terminal of the 4P Leakage Miniature Circuit Breaker is usually non-directional, but some models are marked with "N", which needs to be connected to the neutral wire (must be connected, otherwise the leakage protection will fail). 2. Wiring sequence: The incoming end L1/L2/L3 is connected to the three-phase live wire, and N is connected to the neutral wire; the outgoing end is connected to the load correspondingly. It is strictly forbidden to reverse the live wire and neutral
Send Inquiry
*To:Shandong Kaichuan Electric Power Equipment Co., LTD
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